Attachment for feed-water heaters



(No Model.) 2 Sheets-Sheet 1.

w. WEBSTER. ATTACHMENT FOR FEED WATER HEATERS. No. 53?",326. PatentedApr. 9; 1895.

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UNITED STATES PATENT OF ICE.

WARREN WEBSTER, OF MEROH ANTVILLE, NEW JERSEY.

ATTACHMENT FOR FEED-WATER HEATERS.

SPECIFICATION forming part Of Letters Patent No. 537,326, dated April 9,1895. Application filed Jauuary19,1895- Serial No. 535 ,490. (No model.)

To aZZ whom it may concern.

Be it known that I, WARREN WEBSTER, a citizen of the United States,residing at Merchantville, in the county of Camden, State of New Jersey,have invented a new and useful Improvement in Attachments for Feed-WaterHeaters, which improvement is fully set forth in the followingspecification and accompanying drawings.

My invention relates to feed water heaters,

850., and consists of a novel attachment there No. 390,537, datedOctober 2, 1888; No. 390,538,

dated October 2, 1888; No. 390,927, dated October 9, 1888; No. 396,971,dated January 29, 1889; No. 456,072, dated July 14, 1891, and No.475,992, dated May 31, 1892.

It further consists of novel details of construction, all as willhereinafter be set forth. Figure 1 represents a side elevation, partlyin section, of an attachment for feed water heaters, 860., embodying myinvention, and a portion of a feed water heater to which the same isapplicable. Fig. 2 represents a side elevation, partly in section, of asimilar feed water heater showing also, another adaptation of myinvention thereto. Fig. 3 represents on an enlarged scale a perspectiveview of a feed water heater, showing more clearly the position of myattachment relative to the other parts.

Similar letters of reference indicate corre sponding parts in theseveral figures.

Referring to the drawings: A designates the casing of a feed waterheater, which may pipes of the usual construction, the features ofspecial novelty being the manner of introducing into the heater thereturn water of condensation, and the means for separating the hot airand gases therefrom, and afterward utilizing them to heat the waterwithin the heater.

Referring especially to Fig. 1, B designates the hot water return orinlet pipe, the same being substantially horizontal in the presentinstance, and entering the fitting O to which is attached the U shapedconnection D, which serves as a water seal, the outlet E of which entersthe heater on a lower level than said pipe B, and discharges into thebox F, from which the water flows over the shelves G in the usualmanner, it being apparent that the pipe E can enter the upper portion ofthe heater at any suitable point, and that the box F can bedispensedrwith, the water being sprayed into the heater in any suitablemanner. venient form of trap may be substituted for the U-shapedconnectionD, the function being the same in every instance. p

v H designates a pipe leading from the upperportion of the fitting O,and having a depending branch J which communicates with the interior ofthe heater, and conducts the hot air and gases thereinto at any suitablepoint below the water, it being noted that the water level in the pipe Band the fitting O is such that the upper portion of the same is occupiedby the hot air and gases evolved from said water or from other sources,said hot gases and vapors being conducted into the interior of theheater through the pipes J and H, and it will be understood that thelatter may be connected directly to the pipe 'B if desired, instead ofto the fitting O, or a tank may be substituted for said fitting C ifdesired.

The operation is as follows: The water of condensation from the steamapparatus, which may be a steam heating system, paper drying cylinders,steam drums or other similar apparatus in which steam is used as aheating or drying medium, is conducted to the pipe B, and thence throughthe U-shaped portion or water seal D to the box F within the heater, orto the upper portion of the latter, while the hot air and vaporsare'conducted from the surface of said water to the interior of theheater, below the water, said air and vapors passing upwardly throughthe water and the It will also be obvious that any conheat abstractedtherefrom, being imparted to said water and serving in conjunction withthe steam injected therein to heat said feed water to a high degree, thelatter being withdrawn by the pipe K, while the air can be removed fromthe interior of the heater by the valve K or by any of the other meansdescribed in my former patents, the pipe carrying said valve K beingattached to the heater at any suitable point.

In Fig. 2 is shown another adaptation of my invention, L designating thecylinders of a paper drying machine of any suitable type, the water ofcondensation being conducted therefrom into the pipes M, each of whichcommunicate with the pipe N, which latterit will be noted is below thelevel of the water box F with which said pipe Ncornrnunicates, by meansof the upright branch P, whereby it will be seen that the height of thewater in the pipes M and P will always correspond to substantially thewater level in the box F, and that the space above the water line insaid pipes M, M, will be occupied by the hot air and vapors which aretaken therefrom by means of the pipes Q, which have the valves Rtherein, said vapors being conveyed to the interior of the heaterthrough the pipe b, which enters the same at such a point as to bringsaid hot vapors below the water to be heated, the operation being as hasalreadybeen described, the pipes N and P serving to conduct the water tothe upper portion of the, heater, while the pipes Q and S convey the hotgases either unitedly or singly into the interior thereof, and it willthus be seen that all the heat units in said gases and vapors, areutilized effectively to heat the water entering the heater through thepipe P, the air and water being removed from the heater through thevalve K and pipe K respectively as before. It will also be noted thatthe discharge of the condensations from said cylinders L, will beaccelerated, since the pipe for the hot gases is connected to the returnpipes at a point above the water line, as is evident.

In the construction seen in Fig. 3, the connection is shown applied to aheater in addition to the ordinary appurtenances of the usualconstruction, '1 designating the usual water inlet controlled by thefloat actuated valve U; V, the steam inlet; W, the outlet to the pump,and X the drain pipe, and Y the air valve, &c., the auxiliaryconnections constituting the present invention beingsubstantially thesame as seen in Fig. 1, the parts B, C, D, E, H and J correspondingtothe similarly arranged parts in said figure, the pipe J however,entering the main steam inlet pipe V, while the water pipe E enters theside of the casing at a point adjacent the main water pipe T. Theoperation will be as has already been described with reference to Fig. 1

The main water and steam supply enter the pipes T and V respectively,while the hot water from other sources is introduced through the pipesB, D and E, the latter pipe entering the upper portion of the heater atany suitable point while the pipe J conducts the hot vapors into thepipe V, provision being made for conducting the hot vapors and gasesfrom any other source to said pipe V when desired, the air and waterbeing removed from the interior of the heater by the air valve Y and thepipe W, respectively as is evident. It will thus be seen that in everyinstance, all the heat contained in the vapors and gases is eltectuallyimparted to the water within the heater,a result which cannot beattained when the water and vapors are introduced into the heater in thesame pipe in the usual manner, in which the vapors are above the water,since in the latter intance, no provision is made for bringing everyportion of said water into direct contact with said vapors, which resultcan only be attained when the water is introduced into the upper portionof the heater in the form of a spray, or over distributing plates andthe hot vapors enter the lower portion, both the water and vapors beingbrought into direct contact by the rising vapors meeting the fallingwater, which is the natural result, owing to the respective gravities ofeach, all the heat units in the vapors being thus imparted to the water,as is evident.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In combination with afecd water heater, a return pipe or trap,aconduit leading from one portion thereof to said heater, for conveyingthe water of condensation to the latter, and another conduit leadingfrom said pipe or trap to said heater for conveying the hot vaporsevolved from said water of condensation to the latter.

2. A feed water heater, a return pipe or trap therefor, and separateconduits leading from said pipe or trap to the heater, at differentlevels, one of said conduits conveying the water of condensation to theheater, and the other conveying the hot gases evolved from said wateralso thereto, substantially as described.

A return pipe, a water seal device or trap attached thereto, andconnected to a feed water heater, and a separate pipe for conducting thehot air or gases from said return pipe to the interior of said heater,substantially as described.

4. A feed water heater having the main steam and water inlet, theauxiliary water inlet provided with a water seal or trap, and a conduitfor the hot vapors dcc. leading from said auxiliary water inlet to theinterior of the heaterbelow said water inlet, whereby all the heat unitsof the hot vapors are elfectivel y utilized, substantially as described.

WARREN WEBSTER. Witnesses:

JOHN A. WIEDERSHEIM, E. H. FAIRBANKS.

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